for questions concerning Ubuntu's kernel, including compiling and questions relating to modules

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What to do after Failed to start Load Kernel Modules

I tried to upgrade my system from Ubuntu 14.04. My laptop froze for a few hours. Nor even the pointer did anything. So I switched off by pressing the power button for a few seconds. This uncompleted ...
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1answer
22 views

Kernel Panic - Ubuntu 14.04 crashes when playing call of duty

After playing Call of Duty 2 for about 5-10 minutes my computer crashes (with an Kernel Panic) and displays this message: What does this mean and how can I fix it?
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29 views

dkms problem with VirtualBox kernel registration after 15.10 to 16.04 upgrade [duplicate]

After upgrading an Ubuntu GNOME 15.10 machine to 16.04 I have encountered some problems with my VirtualBox and dkms installation. It seems that during the upgrade dkms had some problems registering ...
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33 views

Kernel panic - not syncing: attempted to kill init! and previous kernels do not work

I am new on using Linux. I use it for some imaging analysis. Today my ubuntu upgraded itself but at the end of the upgrade it gave error. After that the system blocked. I restarted the machine ...
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77 views

Black screen after upgrading to Ubuntu 16

I performed the Ubuntu 16 upgrade on my Dell Inspiron N5110 running Ubuntu 15.10 the other day, and I was greeted with a black screen. I got the noise it makes when the login screen comes up, but ...
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1answer
90 views

How to remove kernels from previous release

See question How to remove kernels from previous release? which is marked as duplicate. I ask this again, because the question is special case and not handled in the answers for the related question. ...
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2answers
109 views

ralink rt3290 driver module not launching and I can't figure out why

I have an HP Envy 15 with the RT3290 from ralink. It had Win8 on it which I have completely removed and installed ubuntu 16.04 on it. I have been trying to get the wireless to work and haven't been ...
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14 views

14.04 Multiple Crashes, Different Circumstances, How to fix?

I am running 14.04 on Hard Drive not Virtual (just for clarification). Sometimes I am doing something, anything, maybe browsing the internet or typing something, and then it gets frozen. I have to ...
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96 views

Ubuntu 16.04 fails connecting to a specific wireless network

I have a problem connecting to a specific wireless network, just could not connect or obtain an IP address. I'm running Ubuntu 16.04 on my laptop Thinkpad t400, with the network adapter Intel 5100AGN....
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1answer
94 views

Surface Pro 3 - installing kernel 4.6 [duplicate]

I am new to ubuntu. I just installed latest ubuntu and I am trying to install the latest kernel v4.6, so I can get a few functions of the type cover to work. I am not familiar with the kernel ...
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1answer
2k views

Updating to Kernel 4.6 on 16.04 [closed]

I have a fairly fresh install of Ubuntu 16.04 running on Kernel 4.4.0-22. Today I saw that the latest stable kernel version is 4.6 on kernel.org and I have a few questions: Is it worth ...
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2answers
47 views

Xubuntu Wifi driver not working after update

I'm running Xubuntu 14.04 LTS. I have a TP Link T4U USB wifi adapter, whic is based on the Realtek RTL8812AU chipset. It has been working flawlessly for a number of months, up until Linux kernel 3.13....
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1answer
38 views

Where is kernel.release generated and updated?

There a file include/config/kernel.release in Linux kernel source. It contains version of the kernel (for example 4.6.0-rc4+). As I know this value is generated from nearest tag of git. I want to ...
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1answer
24 views

Undo installation of an unstable kernel [duplicate]

I am facing a problem with kernel installation. I installed two packages but the last one didn't. So I want to uninstall the first package. In this link I have described what was my problem. my ...
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11 views

Xenial Server is not quite working with 802.1x port-based authentication

Ubuntu server 16.04 with kernel 4.4.0-22. Cisco switch C3750 with 802.1x port-based authentication. Everything went fine until one day, our radius server died. When radius server was unreachable, the ...
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1answer
72 views

What is the lastest stable kernel and how to install it?

I face a problem with installing kernel 4.6 on Ubuntu 16.04 . Someone said because it was unstable. So What is the latest stable version of kernel and how to install it.
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38 views

Bad quality of package for installing linux kernel

I was trying to install kernel 4.6 on Ubuntu 16.04 but I face a problem I follow these steps How to Install Kernel 4.6 in Ubuntu: There are .deb packages for this kernel release available in kernel-...
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1answer
34 views

Compilation of Linux kernel 3.14 stops without any errors on ubuntu 14.04

I'm trying to compile linux kernel 3.14 on ubuntu 14.04. Before anyone points out, I know newer stable versions of the kernel are available but I have been asked to install 3.14 itself. So, I wrote a ...
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37 views

Kernel Panic not syncing: Is HDD corrupt?

when I start my laptop, I get a kernel panic every time (even in rescue mode or older kernel versions). I don't know what causes the issue it comes up since last shutdown. Bevore a basic command line ...
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12 views

Keyboard drivers uninstall after kernel update

I have a g710 keyboard which has extra buttons, so I have to install a driver https://github.com/Wattos/logitech-g710-linux-driver. The problem is, whenever a new kernel update comes out I have to ...
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1answer
11 views

Which file defines the virtual console color

I am trying to find the source in the Ubuntu kernel tree that defines color values for the virtual console. Where is it defined? On other linux distributions, it is defined in drivers/char/vt.c
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1answer
87 views

Install old kernel in ubuntu 16.04

My laptop can work perfectly on kernels up to 3.13.0-85 so is it possible to install the same in Ubuntu 16.04 without affecting it's performance? And if yes then how?
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14 views

WCHAN = 0 for a sleeping task?

I am a little confused about the status of a process I have. It looks like this: $ ps -eal | head -n 1 ; ps -eal | grep perf F S UID PID PPID C PRI NI ADDR SZ WCHAN TTY TIME CMD 4 S ...
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28 views

Install cloud image on Rasperry pi 3

Can anybody explain what's the current status of Ubuntu on Raspberry Pi 3? AFAIK only 32-bit ARM mode is supported, but there are some thngs I can't understand: Officially, there is no ARMv8 Liunx ...
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42 views

errors while trying to update to new 3.16 kernel

Error! Bad return status for module build on kernel: 3.16.0-71-generic (x86_64) Consult /var/lib/dkms/amdgpu-pro/16.15.2-277429/build/make.log for more information. Warning: No support for locale: ...
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23 views

Laptop messing up after installing/deleting linux-image, linux-headers, and the like

Yesterday, my laptop was acting up - very high CPU, hot to the touch, etc. I had no explanation for the sudden change (nothing could account for the high CPU usage), so I checked my apt history to see ...
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8 views

Enable DRM_KMS_CMA_HELPER in linux kernel [duplicate]

I'm trying to recompile my Linux Kernel 3.18 with DRM_KMS_CMA_HELPER enabled, but editing the .config file is not working. I have the dependencies enabled, but it still shows and not enabled. Is ...
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23 views

Boot widnows from grub prompt

I'm quite a noob with linux and I'm experiencing some huge troubles with an Ubuntu 16 installation. My system is composed of 2 disks: Windows 10 and Grub on the first (sda) and Ubuntu 16 on the ...
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1answer
50 views

Release name of current signed kernel

Is the output of uname -r always like 4.2.0-37-generic, or would it show the postfix .efi.signed denoting it is a signed kernel, if a signed kernel is booted on a machine (with UEFI) requiring such a ...
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18 views

How to find installed kernel image metapackages?

I have used this, but is there a better way? dpkg-query -W -f='${Package} ${Status}\n' | awk '/^linux-(.+-)?image-[^0-9]+(-lts-[^ ]+)? [^ ]+ ok installed/{print $1}' How to find kernel metapackages ...
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17 views

sysctl.conf or grub file for kernel parameters?

As far as I know it is possible to send kernel parameters with both the sysctl.conf and the grub2 configuration files at boot time. If the same parameter is configured using both methods which ...
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75 views

system freeze on monitor wake-up after upgrade to 16.04

I have nvidia gtx 980 (driver v. 364.19), MSI X99S MB, i7-5820k 32GB DDR4 ram. My setup is 3 4k monitors (on DP-0, DP-2 and Dp-4) After my monitors go to sleep (the computer is not asleep) then ...
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1answer
342 views

How to compile Ubuntu 16.04 kernel with zfs module

I build custom Ubuntu kernel with make localmodconfig at the Ubuntu 16.04 lts server with installing zfs and mounted zfs pool. make localmodconfig using config: '.config' zfs config not found!! ...
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39 views

How do I install custom kernel header files?

I've compiled and loaded a new kernel with: make localmodcongif make headers_install make install update-grub But for new kernel I do not get a new directory in /usr/src/linux-headers-<...
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37 views

Ubuntu boot error- Kernel Panic not syncing attempting

I am using Ubuntu 14.04(dual-boot).Suddenly I am getting this error on boot:- kernel panic - not syncing: Attempted to kill inint ! PId: 1, comm: init not tainted 2.6.32.-279-5.2.e16.x86_64 #1 call ...
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1answer
22 views

Boot failure with Kernel 4.x

My HP Workstation Z820 is not booting with Kernel > 3.9x Trying to update to 15.10 or 16.04 fails. New install of 16.04 from CD fails also - see image..
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1answer
94 views

Why so many linux-headers, even for absent images

I removed many of linux-images of 3.13.0-x versions, I left few versions installed. ~ > dpkg --list | grep linux-image rc linux-image-3.13.0-83-generic 3.13.0-83.127 ...
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1answer
28 views

why I can't intall kernel sources from repository

I was trying to install VirtualBox in my machine. I found that I need the kernel sources to do so. To see which kernel sources I needed I checked uname -r which gave: 3.2.0-59-generic-pae The first ...
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1answer
190 views

Kernel build 4.4.0.22 decreases battery life (16.04 LTS)

My battery life was fine when I installed 16.04 LTS (clean install) on my Lenovo z51-70, but after a regular software update or build to kernel, from 4.4.0.21 to 4.4.0.22, it has almost halved (1.50 ...
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15 views

Is linux-generic installed when linux-signed-generic is installed?

Similarly is linux-lowlatency installed when linux-signed-lowlatency is installed? Signed images seem to depend on regular images, but that is not the case with meta packages. So it is not technically ...
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28 views

Is there an efficient and safe way to remove VirtualBox kernel modules for uninstalled kernels

I used sudo apt-get autoremove --purge to remove old kernels in Ubuntu 14.04. And this works fine as long as they are marked as automatically installed but it said that it could not remove the ...
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4answers
81 views

What other software is available to remove old files/kernels to increase space and cleanup drive?

Like many others users, I need to remove files/kernels to increase space because I'm getting the error message that says I can't update because I have don't have enough space in \boot. I've searched ...
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0answers
79 views

Asus & UBUNTU | Touchpad doesn't work at all

I have a brand new ASUS GL552VW, trying to install UBUNTU 14.04 on it. After installation the touchpad doesn't work at all, neither shows up on xinput -list. (External mouse works.) The kernel was 3....
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1answer
72 views

End kernel panic: vfs: Vista unable to mount root fs on unknown-block (2, 0) HELP!

Newbie Downloaded torrent. Used UUI. Placed Ubuntu on appropriately formated disk. I get this message at boot... 0.536889] kernel offset :disabled 0.563918] - - - [ end kernel panic - not syncing:...
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26 views

Ubuntu freezing when running on Bay Trail CPU

There is a known issue with aggressive power saving protocols causing Ubuntu to freeze and a tested work-around through limiting the max C state - https://bugzilla.kernel.org/show_bug.cgi?id=109051 ...
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15 views

Cannot use 'make' to install Digimend Driver on C720P running Crouton

I have little to almost no knowledge of Linux but I have been using Xubuntu 14.04 on a C720P Chromebook for almost a year now. Today I got a new graphics tablet "Huion 420" and I have been trying to ...
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0answers
37 views

Problem with apt-get for kernel sources

I am running Ubuntu desktop 16.04 I tried to get the kernel sources using the command apt-get source linux-image-$(uname -r) as recommended in the Ubuntu wiki. I got the error E: You must put ...
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143 views

Ubuntu 16.04 LTS will hang on boot. Booting from lived/USB fails. Boot repair does nothing

I have no clue what else to do. I upgraded from 12.04lts to 16.04 Lts (forced). I've tried everything I could find online to no avail. Whenever I boot there is a kernel panic, I've attached a picture ...
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1answer
45 views

Which is the “correct”/“official” kernel version? (server vs cloud-img installs)

I recently used official images to install bare metal servers and VMs (using a cloud image) and found out they install quite different kernels out of the box: 14.04.4 server iso (from here) installs ...
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2answers
71 views

Maximum compatible kernel version

I recently installed Ubuntu 16.04 LTS. Since, I was facing the suspend bug, I installed a newer kernel as suggested here. Even although the above mentioned link recommends to install kernel v4.4.8-...